class_docstr: Collector class for reporting statistics on Tensorboard.
code: def flush(self):
      self.summary_writer.flush()
  
file_path: dopamine/dopamine/metrics/tensorboard_collector.py
imports: from typing import Sequence
  from dopamine.metrics import collector
  from dopamine.metrics import statistics_instance
  import tensorflow
label_desc: Use image node_id 4 for calling the TensorboardCollector obj's underlying member method code with example usage: obj.flush() without return types